US3576777A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paints with thixotropic properties
Assignee: Bayer AG
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Filing: 1969-10-07
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Granted: 1971-04-27
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Expires: 1989-10-07
Abstract
Abstract THIXOTRIPIC UNATURATED OIL MODIFIED ALKYD RESINS CONTAINING FROM ABOUT ONE PERCENT TO ABOUT 30 PERCENT BY WEIGHT OF A POLYURETHANE PREPARED FROM AN ORGANIC DIISOCYANATE AND A GLYCOL ARE UTILIZED TO PREPARE PAINTS HAVING THIXOTRIPIC PROPERTIES EVEN WHEN LARGE QUANTITIES OF SOLVENT ARE USED AND DURING OVEN DRYING.
Inventors
- 👤 Wolfram Neumann
- 👤 Erich Zankl
- 👤 Hans Joachim Kreuder
- 👤 Heinz Ehring
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:06
CPC Classifications
C; C09; C09D; C09D167/00; C09D167/08; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/2805; C08G18/2815; C08G18/282; C08G18/30; C08G18/32; C08G18/3203; C08G18/70; C08G18/71; C08G18/72; C08G18/74; C08G18/76; C09D161/00; C09D161/20
Claims Analysis
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-04-26 | 1974-10-26 | 1975-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-26 | 1978-10-26 | 1979-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-26 | 1982-10-26 | 1983-04-27 | $7700.00 | Window Closed / Lapsed |